@bi4smooth
Biggest problem is all carbohydrates (sugars) which we eat not realising that this is sugar (bread, pasta, rice etc) plus mixing high sugar and high fat.
You have slim people on high sugar diet eating low fat (Japan, Korea , China)
You have slim people on High fat low sugar diet - Eskimo
You have people eating proportional balanced foods - like italian french german etc - and it was OK when folks were poor - nw they eat too much -and gettng fat
Then you have concept of eating what i want - today chinese, tomorrow italian, yesterday indian - different diets different proportions - you cannot control as you have no idea what nutritients are in them as they are out of your cultural background. If you kept into your own traditions you would eat rich one day and fast another - as it was in old times.
B